Water quality in Merrimack, New Hampshire
Merrimack is in Hillsborough County. 280 active public water systems serve the county; 96 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Hillsborough County
73 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Souhegan Woods Amherst |
298 | 0 | 3.0 mi | |
| Litchfield Litchfield |
6,920 | 0 | 3.5 mi | |
| Ridgewood Estates Amherst |
115 | 1 | 3.5 mi | |
| Cabot Preserve Bedford |
965 | 0 | 3.6 mi | |
| Little Pond Estates Bedford |
3,000 | 0 | 5.3 mi | |
| Connor Court Amherst |
51 | 0 | 5.3 mi | |
| Gowing Woods Amherst |
53 | 0 | 5.3 mi | |
| Farley RD Estates Nashua |
85 | 0 | 5.6 mi | |
| Francoeur Apt/hudson Motor Inn Hudson |
58 | 0 | 5.9 mi | |
| Silver Lake Estates Hollis |
100 | 0 | 6.2 mi | |
| Pennichuck Water Works Nashua |
88,853 | 0 | 6.7 mi | |
| Powder Hill Bedford |
1,148 | 0 | 7.3 mi | |
| Ashley Commons Milford |
75 | 0 | 7.5 mi | |
| Fairhaven Mobile Home Park Milford |
63 | 3 | 7.5 mi | |
| Heritage Way Milford |
48 | 0 | 7.5 mi | |
| Milford Water Utilities Dept Milford |
9,500 | 1 | 7.7 mi | |
| English Woods Bedford |
58 | 0 | 8.1 mi | |
| Hudson Water Dept Hudson |
16,700 | 1 | 8.2 mi | |
| Rolling Acres MHP Mont Vernon |
100 | 0 | 8.5 mi | |
| Hollis Village Marketplace Hollis |
36 | 3 | 8.7 mi | |
| MT Laurel Estates Goffstown |
115 | 1 | 8.8 mi | |
| Manchester Water Works Manchester |
123,500 | 0 | 9.0 mi | |
| Hudson Mobile Home Ests Hudson |
220 | 0 | 9.1 mi | |
| Badger Hill Milford |
455 | 0 | 9.8 mi | |
| Orchard Highlands Goffstown |
105 | 0 | 10.5 mi |
Non-community systems in Hillsborough County (206: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Hillsborough County, nearest to Merrimack first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The New Hampshire records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.